如何将整个SQL Server 2014数据库转储到文件中，以导入到Postgres数据库中？ [英] How to dump an entire SQL Server 2014 database into a file, to be imported into a Postgres database?

问题描述

我有一个SQL Server 2014数据库，我只需要从中转储表数据（没有索引，存储过程或其他任何东西）。

I have a SQL Server 2014 database from which I need to dump just the table data (no indexes, stored procedures, or anything else).

此转储需要可以按原样导入Postgres 9.3数据库。

This dump needs to be imported into a Postgres 9.3 database "as-is".

创建此类转储的正确命令行是什么？

What id the proper command line to create such a dump?

推荐答案

我必须承认，这更像是个玩笑...您应该按照提示使用导出并将其写入某种CSV。只是为了好玩：

I must admit, this is more sort of a joke... You should rather follow the hint to use "Export" and write this to some kind of CSV. Just for fun:

列不能直接转换为 XML RAW 并添加无效数据：

columns, which are not directly convertible into XML RAW are added with "invalid data":

DECLARE @Commands TABLE(ID INT IDENTITY,cmd NVARCHAR(MAX));

INSERT INTO @Commands(cmd)
SELECT '(SELECT TOP 3 ' 
                        + STUFF(
                            (
                                SELECT ',' + QUOTENAME(COLUMN_NAME)
                                FROM INFORMATION_SCHEMA.COLUMNS AS c 
                                WHERE c.TABLE_CATALOG=t.TABLE_CATALOG AND c.TABLE_SCHEMA=t.TABLE_SCHEMA AND c.TABLE_NAME=t.TABLE_NAME
                                  AND c.DATA_TYPE NOT IN('image','text') AND c.DATA_TYPE NOT LIKE '%BINARY%'
                                FOR XML PATH('')
                            ),1,1,''
                          )
                        + 
                            (
                                SELECT ',''invalid data'' AS ' + QUOTENAME(COLUMN_NAME)
                                FROM INFORMATION_SCHEMA.COLUMNS AS c 
                                WHERE c.TABLE_CATALOG=t.TABLE_CATALOG AND c.TABLE_SCHEMA=t.TABLE_SCHEMA AND c.TABLE_NAME=t.TABLE_NAME
                                  AND (c.DATA_TYPE IN('image','text') OR c.DATA_TYPE LIKE '%BINARY%')
                                FOR XML PATH('')
                            )

                        + ' FROM '  + QUOTENAME(t.TABLE_CATALOG) + '.' + QUOTENAME(t.TABLE_SCHEMA) + '.'
       + QUOTENAME(t.TABLE_NAME) + ' FOR XML RAW,TYPE) AS ' + QUOTENAME(t.TABLE_CATALOG + '_' + t.TABLE_SCHEMA + '_' + t.TABLE_NAME)  
FROM INFORMATION_SCHEMA.TABLES AS t WHERE t.TABLE_TYPE='BASE TABLE';

DECLARE @finalCommand NVARCHAR(MAX)=
(
    SELECT 'SELECT '
          +'(SELECT TABLE_CATALOG,TABLE_SCHEMA,TABLE_NAME FROM INFORMATION_SCHEMA.TABLES FOR XML RAW,TYPE) AS ListOfTables'
          + (
                SELECT ',' + cmd
                FROM @Commands
                ORDER BY ID
                FOR XML PATH('')
            )
          + ' FOR XML PATH(''AllTables'')'
);

EXEC( @finalCommand);

这篇关于如何将整个SQL Server 2014数据库转储到文件中，以导入到Postgres数据库中？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！